Just updated it but recently added is still not working. It no longer causes xbmc/windows to hang it just doesn't do anything anymore, I can't see anything in the log file either.
EDIT: strange it's now randomly started working, I'd restarted several times so I can't explain it. Now that it's working I'd like to see the episode thumb rather than the series fanart and if possible the series name?

Not sure if this is just on my configuration, but when I set the background to Music fanart it shows TV series fanart and from 76 shows I have it just rotates like 5-6 fanarts. I do not have any music fanart stored if that is important.

While selecting Video fanart shows properly both movies and tv series I would like if those could be made separate (somehow ).

Separate movie & tvshows is not possible, they are both stored in the same folder. You have to separate them manually. The problem with music is that if the folder is empty, the multiimage doesn't change it's path. The image is hidden if there's no path specified but I think it's not possible to know if a specified path contains no images.

Edit: I have an idea, maybe it's working.
Edit2: No, no working. I guess it's recommended if using video, music fanart or multi that the folder contains at least one image.

`Black Wrote:Recently added is also not appearing if you e.g. enter movies and go back to home?

That's correct. Just can't get it to show up on home panels, but they do show in that guide menu and of course they work in other skins i.e. confluence. Just to be perfectly clear this is what I don't see:

`Black Wrote:The text in the guide menu is probably hardcoded, will fix that.

Yes, the guide menu text in Includes_GuideInterface.xml and it's just 4 words on that System Info tab starting with "Benutzer".

And another small thing I found is that some skins under addons have invisible buttons like this (some have 1 some 2 buttons like this).

You're screenshot has the wrong aspect ratio, hasn't it? 1920x1080 or at least an aspect of 16:9 is recommended for this skin. And I don't have that issue with the buttons, e.g. Xeebo looks fine here.

Which XBMC version do you use? Don't use anything before the 1st of september, it may cause issues right up to freezing problems. This could also be the problem why recently added is not working for you, the skin uses the built-in recently added.